<u>Answer:</u>
The alternative complement pathway kill the invading microbial cell by enhancing the phagocytosis of microbes by host cells.
Option: (C)
<u>Explanation:</u>
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The complement pathway is an immune system which destroys the microbes with protein complex and phagocytes.
- It has tree types namely 'classical, alternative and lectin pathway'.
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In alternative complement pathway complex
protein complex kills the microbes in two ways,
- It attaches to the cell wall of the bacteria and kills by lysis
- Stimulates the formation of "Membrane Attack Complex(MAC)" which causes lysis of the bacteria.
If a molecule is too big or has a charge it will not diffuse through the membrane by passive transport.
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three stages
Answer:
Clearcutting removes all the trees within a certain area at one time. Shelterwood cutting also removes all the trees in an area, but does it in stages over several years. Seed-tree cutting removes all the trees except for a select number of mature trees that can then reseed the area.
Explanation:
Hope that helps!
